ArticleSao Paulo medical journal = Revista paulista de medicina2012
Overview of systematic reviews - a new type of study: part I: why and for whom?
Article in Sao Paulo medical journal = Revista paulista de medicina, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 60 citations in OpenAlex.
- Occlusal Splint Therapy in the Management of Temporomandibular Disorders-Evidence from Systematic Reviews.Journal of oral rehabilitation · 2026Pooled it
- A proposed framework for the systematic review and integrated assessment (SYRINA) of endocrine disrupting chemicals.Environmental health : a global access science source · 2016Pooled it
- Effects of Blood Flow Restriction Therapy in Individuals With Knee Osteoarthritis: Overview of Systematic Reviews.Clinical medicine insights. Arthritis and musculoskeletal disorders · 2026Review
- Tooth Graft: An Umbrella Overview.European journal of dentistry · 2024Article
- An Overview of the Systematic Evidence on the Adjunctive Use of Laser Therapy in Non-surgical Periodontal Treatment.Cureus · 2023Review
- Effect of premedication on the success of inferior alveolar nerve block in patients diagnosed with irreversible pulpitis: An umbrella review.Dental research journal · 2023Review
- Effectiveness and Safety of Herbal Medicine for Atopic Dermatitis: An Overview of Systematic Reviews.Evidence-based complementary and alternative medicine : eCAM · 2020Review
- The Genetics of Polycystic Ovary Syndrome: An Overview of Candidate Gene Systematic Reviews and Genome-Wide Association Studies.Journal of clinical medicine · 2019Review
- Association between work-related biomechanical risk factors and the occurrence of carpal tunnel syndrome: an overview of systematic reviews and a meta-analysis of current research.BMC musculoskeletal disorders · 2015Review
- Advancing knowledge of rapid reviews: an analysis of results, conclusions and recommendations from published review articles examining rapid reviews.Systematic reviews · 2015Article
- What are the effects of teaching evidence-based health care (EBHC)? Overview of systematic reviews.PloS one · 2014Review
- Overview of systematic reviews - a new type of study. Part II.Sao Paulo medical journal = Revista paulista de medicinaReview
- Searching for randomized controlled trials and systematic reviews on exercise. A descriptive study.Sao Paulo medical journal = Revista paulista de medicinaArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
CONTEXT AND
objectiveHealthcare decision-making is complex and should involve healthcare professionals, patients and the best level of evidence. The speed of information production creates barriers against keeping up to date. In this light, methodologists have proposed a new type of study: overviews of systematic reviews (OoRs). The aim here was to introduce and demonstrate the role of OoRs in information synthesis for healthcare professionals, managers, researchers and patients. DESIGN AND
settingTime-series study conducted at the Brazilian Cochrane Center, jointly with the Postgraduate Program on Internal Medicine and Therapeutics, Discipline of Emergency Medicine and Evidence-Based Medicine, Department of Medicine, Federal University of São Paulo.
methodsTo show the growth in the numbers of published papers that provide high-level evidence and thus demonstrate the importance of OoRs for synthesis and integration of information, three filters for study designs were applied to two databases. An equation for predicting the expected number of published papers was developed and applied.
resultsOver the present decade, the number of randomized controlled trials in Medline might reach 2,863,203 and the number of systematic reviews might reach 174,262. Nine OoRs and 15 OoRs protocols have been published in the Cochrane Library.
conclusionsWith the exponential growth of published papers, as shown in this study, a new type of study directed especially towards healthcare decision-makers was proposed, named "overview of systematic reviews". This could reduce the uncertainties in decision-making and generate a new hierarchy in the pyramid of evidence.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.